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EP 4 288 268 A1

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(43) Date of publication: 13.12.2023 Bulletin 2023/50 (21) Application number: 22703697.7 (22) Date of filing: 03.02.2022

(51) International Patent Classification (IPC):  B29C 48/92(2019.01) B29C 48/255(2019.01) B29C 64/209(2017.01) B33Y 30/00(2015.01) B29C 48/02(2019.01) B29C 64/106(2017.01) B33Y 10/00(2015.01) B29C 64/182(2017.01) (52) Cooperative Patent Classification (CPC): B29C 64/106; B29C 64/209; B33Y 10/00; B33Y 30/00; B29C 64/182 (86) International application number: PCT/GB2022/050281 (87) International publication number: WO 2022/167799 (11.08.2022 Gazette 2022/32)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 04.02.2021 GB 202101534 (71) Applicant: University of Strathclyde Glasgow G1 1XQ (GB)	(72) Inventors: ANWAR, Ali Ahmed Blanefield G63 9JG (GB) HALBERT, Gavin William Glasgow G1 1XQ (GB) ROBERTSON, John Glasgow G1 1XQ (GB) (74) Representative: Marks & Clerk LLP  15 Fetter Lane London EC4A 1BW London EC4A 1BW (GB)